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Finding the Fourth Proportional to 522.96, 784.56 and 234.24

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Solution

The fourth proportional to 522.96, 784.56 and 234.24 is: 351.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522.96 : 784.56 = 234.24 : x
  2. Step 2: Convert to fraction form
    522.96/784.56 = 234.24/x
  3. Step 3: Cross multiply
    522.96x = 784.56 × 234.24
  4. Step 4: Simplify right side
    522.96x = 183,775.33
  5. Step 5: Solve for x
    x = 183,775.33/522.96
  6. Step 6: Final answer
    x = 351.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.